I have a problem for my woocommerce by using wootique

Could anyone help me to solve this problem

I have several problem for my website
I using woocommerce+wootique 1.6 to build up a shopping website

Here is the problem
when i check the demo which the official website offer
http://demo2.woothemes.com/?name=wootique

I can use any button in this website
But after i download your files and install in my wordpress,I met several problem

1.
I can’t use “checkout ” this button (it doesn’t work)i click it ,and it can’t transfer to another pages just remaining running ,and finally show “can’t find the page” could somebody tell me why??

I check the Pages section in my wordpress , and see all the pages only show “woocommerce_XXX” , i think it’s probably write at the Appearance-> Editor part , but i don’t know how to fix it

2.
I can’t using the (it doesn’t work ,too) i click it ,and it can’t transfer to another pages just remaining running ,and finally show “can’t find the page” could u tell me why??

I check the Pages section in my wordpress , and see all the pages only show “woocommerce_XXX” , i think it’s probably write at the Appearance-> Editor part , but i don’t know how to fix it

3.
I can’t see my Contact page, and i saw there is a Contact Page in my Appearance-> Editor part, and also in your demo website, could somebody tell me how to build it

4.
It can obviously see that in the footer part of my website the color is different to the header part, i don’t know why ,it show the same color (deep blue) at the begin (when I didn’t add anything at the Footer part)
seems the page it’s constant, once i add some widgets the footer will be different color, could u help me how to change it

Here is my website
http://learnnetacts.netii.net/
Thanks a lot